Ignition coils are devices that convert low-voltage electrical current from the battery into high-voltage current that is used to create sparks in the spark plugs. Ignition coils are essential for the proper functioning of the internal combustion engine, as they provide the necessary energy to ignite the air-fuel mixture in the cylinders. Ignition coils consist of two windings of copper wire, called the primary and secondary, that are wrapped around an iron core. The primary winding is connected to the battery and the ignition switch, while the secondary winding is connected to the distributor and the spark plugs. When the ignition switch is turned on, a small amount of current flows through the primary winding, creating a magnetic field around the iron core. When the ignition switch is turned off, or when a signal from the electronic control unit (ECU) interrupts the current, the magnetic field collapses rapidly, inducing a much larger current in the secondary winding. This high-voltage current travels through the distributor and reaches the spark plugs, where it jumps across a small gap between two electrodes, creating a spark that ignites the air-fuel mixture.
Showing 1–10 of 623 results
